Grounding, Venting Requirements, Venting Codes

Electrical Service Requirements: System Requirements

The MHT tube heater requires a grounded three-prong electrical outlet to be installed within 18 inches of the rear surface of the heater’s burner box. It is recommended that the outlet for the heater be ceiling-mounted and should be on a dedicated circuit. DO NOT use an electrical extension cord to operate the heater.

Heater Rating: 120 VAC, 60 Hz, Single Phase, 1 Amp

WARNING Electrical Shock Hazard

Plug heater into grounded three-prong ceiling receptacle. Do not cut or remove the grounding prong from this plug. Do not use with an extension cord.

Failure to follow these instructions will result in death or electrical shock.

ATTENTION

Risque d’electrocution

Brancher le cordon du radiateur sur un socie a 3 broches et a la masse, situe au plafond.

Ne pas sectionner ou retirer la broche de masse de cette prise.

N’utilliser aucun cable de rallonge.

Le non-respect de ces consignes peut entrainer mort ou electrocution.

Grounding

The heater must be electrically grounded in accordance with the following codes: United States: Refer to National Electrical Code ANSI/NFPA-70 – latest revision. Wiring must conform to the most current National Electrical Code and local ordinances. Canada: Refer to Canadian Electrical Code, CSA C22.1 Part 1 – latest revision.

Venting Requirements:

System Requirements

The MHT tube heater must be installed with venting or with one of the optional venting kits available from Enerco. DO NOT connect this heater to a separate chimney. Gas appliances must not be connected to a chimney flue serving a seperate solid-fuel burning appliance. DO NOT common vent with any other fuel burning appliance.

Maximum Length: 25 feet

Minimum Length: 5 feet

WARNING

Carbon Monoxide Hazard

Heater must be exhausted outside. Use materials supplied.

Failure to follow these instructions will result in death or injury.

ATTENTION

Risque de monoxyde de carbone

L echappement du radiateur doit s’effectuer a l’exterieur. Utillisez le materiel fourni.

Le non-respect de ces consignes peut entrainer mort ou blessures.

Venting Codes

The location, size, installation and termination of vents, as well as the minimum required safe distances when penetrating combustible walls, must comply with local codes and recommendations of the local gas company. United States: Refer to National Fuel Gas Code, ANSI Z223.1 – latest revision, (same as NFPA Bulletin 54). Canada: Refer to Can 1-B149.1 : Installation Codes for Gas Burning Appliance.

Non-residential Installations:

Aircraft Hangars

The MHT tube heater may be used in certain areas of aircraft hangars. Installation in aircraft hangars must be in accordance with the following codes: United States: Refer to Standard for Aircraft Hangars, ANSI/NFPA-409 – latest revision. Canada: Refer to Standard CGA B149-1M91.

Heaters in aircraft storage or service areas must be installed a minimum of 10 feet above the upper surface of wings or engine enclosures of the highest aircraft which may be housed in the hangar. (This should be measured from the bottom of the heater to the top of the wing, or engine enclosure, whichever is highest from the floor).

In other sections of aircraft hangars, such as shops or office, heaters must be installed a minimum of 8 feet above the floor.

Heaters installed in aircraft hangars shall be located so as not to be subject to damage by aircraft, cranes, movable scaffolding or other objects.

When installed over hoists, the minimum required safe distances to combustibles must be maintained from the uppermost point of the combustible materials placed on the hoist.

Public Garages

The MHT tube heater may be used in public garages. Installation in public garages must be in accordance with the following codes: United States: Standard for Parking Structures NFPA-88A – Latest revision, or the Standard for Repair Garages, NFPA-88B – latest revision. Canada: Refer to Can 1-B149.1: Installation Codes for Gas Burning Appliances.

Heaters must be installed a minimum of eight feet above the floor. Minimum required safe distances to combustibles must be maintained from vehicles parked below the heater.

When installed over hoists, the minimum required safe distances to combustible must be maintained from the uppermost point of the combustible materials placed on the hoist.

Hazardous Locations

Where there is the possibility of exposure to combustible airborne material or vapor, consult the local Fire Marshal, the Fire Insurance Carrier or other authorities for approval of the proposed installation.

Mr. Heater Gas-Fired Low-Intensity Infrared Heater

Operating Instructions and Owner’s Manual

MHT 45 specifications

The Mr. Heater MHT 45 is a versatile and powerful heating solution designed for both residential and commercial spaces. This portable propane heater stands out in the market due to its efficient heating capabilities and user-friendly features, making it ideal for workshops, garages, and outdoor activities.

One of the standout features of the MHT 45 is its robust heating output. It can deliver an impressive 45,000 BTUs, ensuring that even larger spaces are heated quickly and effectively. This high output is particularly beneficial during colder months, where rapid warmth is essential for comfort and productivity. The heater offers a heating range of up to 1,000 square feet, making it suitable for various applications, whether in the home or on the job site.

The MHT 45 utilizes advanced radiant heating technology, providing even warmth without requiring a fan. This technology allows for silent operation, making it an excellent option for noise-sensitive environments. Additionally, the radiant heat minimizes air movement and helps maintain humidity levels, creating a comfortable atmosphere while reducing dust and allergens in the air.

Another noteworthy characteristic is its portability. The MHT 45 comes equipped with a sturdy handle, allowing for easy transport between locations. This makes it a favorite among tradespeople who need efficient heat in different work areas or outdoor enthusiasts who want comfort while camping or tailgating.

Safety features are abundant in the Mr. Heater MHT 45. It includes an automatic shut-off system, which activates if the heater tips over, ensuring user safety. The built-in oxygen depletion sensor automatically turns the heater off if it detects low oxygen levels in the surrounding environment, providing peace of mind while operating.

The heater runs on a 20-pound propane tank, providing a substantial amount of heating time before needing a refill. This efficiency means users can rely on the MHT 45 for extended periods without frequent interruptions.

In summary, the Mr. Heater MHT 45 is a powerful propane heater packed with features that cater to both indoor and outdoor heating needs. With its high BTU output, silent operation, portability, and extensive safety measures, it represents a reliable choice for anyone looking to stay warm in various settings. Whether for personal use or demanding job sites, the MHT 45 is engineered to deliver comfort and convenience.